/* ==========================================================================
   Inwook Kim — Portfolio  ·  stylesheet
   ========================================================================== */

:root{
  --bg:#f7f5f0;
  --ink:#1a1a18;
  --muted:#6f6d66;
  --muted-2:#9a978e;
  --line:#e5e2d9;
  --card:#eceae2;
  --card-2:#e8e5dc;
  --dark:#161513;
  --accent:#c1512f;
  --serif:'Lora', Georgia, 'Times New Roman', serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --wrap:1440px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

h1,h2,h3,h4{font-family:var(--serif);font-weight:600;color:var(--ink);margin:0;letter-spacing:-.01em;line-height:1.12}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px}

.eyebrow{
  font-family:var(--sans);text-transform:uppercase;letter-spacing:.18em;
  font-size:.72rem;font-weight:600;color:var(--muted-2);margin:0 0 18px
}

/* reveal-on-scroll — soft, clean, eased */
.rv{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .9s cubic-bezier(.33,1,.68,1), transform .9s cubic-bezier(.33,1,.68,1);
}
.rv.on{opacity:1;transform:none}

/* gentle stagger so items in a row cascade in softly */
.case-grid .rv:nth-child(2),.price-row .rv:nth-child(2),.steps .rv:nth-child(2),
.fig-grid .rv:nth-child(2),.work-grid .rv:nth-child(2){ transition-delay:.10s }
.case-grid .rv:nth-child(3),.price-row .rv:nth-child(3),.steps .rv:nth-child(3),
.fig-grid .rv:nth-child(3),.work-grid .rv:nth-child(3){ transition-delay:.20s }
.steps .rv:nth-child(4),.fig-grid.cols-4 .rv:nth-child(4){ transition-delay:.30s }

/* respect users who prefer reduced motion */
@media (prefers-reduced-motion:reduce){
  .rv{ transition:none; opacity:1; transform:none }
}

/* --------------------------------------------------------------------- nav */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(247,245,240,.88);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)
}
.nav-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 40px;height:74px;
  display:flex;align-items:center;justify-content:space-between
}
.wordmark{font-family:var(--serif);font-weight:600;font-size:1.4rem;letter-spacing:-.01em}
.wordmark span{color:var(--accent)}
.nav-links{display:flex;gap:34px}
.nav-links a{
  text-transform:uppercase;letter-spacing:.13em;font-size:.74rem;font-weight:500;
  color:var(--muted);transition:color .18s
}
.nav-links a:hover{color:var(--ink)}
.nav-links a.on{color:var(--ink);font-weight:600}

/* hamburger (hidden on desktop; shown ≤1024 via media query) */
.nav-toggle-cb{display:none}
.nav-toggle{display:none}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease, opacity .2s ease}

/* language toggle (EN / KO) — neumorphic pill */
.wordmark{ margin-right:auto; }
.lang-toggle{ display:inline-flex; align-items:center; gap:8px; margin-left:24px;
  border:0; background:transparent; cursor:pointer; padding:4px; font-family:var(--sans); }
.lang-toggle > span{ font-size:.66rem; font-weight:700; letter-spacing:.08em; color:var(--muted-2); transition:color .2s; }
.lang-toggle .lt-track{ position:relative; width:40px; height:22px; border-radius:999px; background:#e7e3d9;
  box-shadow: inset 2px 2px 4px rgba(0,0,0,.10), inset -2px -2px 4px rgba(255,255,255,.85); }
.lang-toggle .lt-knob{ position:absolute; top:3px; left:3px; width:16px; height:16px; border-radius:50%;
  background:var(--accent); transition:transform .25s ease; box-shadow:0 1px 3px rgba(0,0,0,.3); }
.lang-toggle[data-lang="ko"] .lt-knob{ transform:translateX(18px); }
.lang-toggle[data-lang="en"] .lt-en{ color:var(--ink); }
.lang-toggle[data-lang="ko"] .lt-ko{ color:var(--ink); }

/* Korean: break lines only at spaces, never between syllables */
html[lang="ko"]{ word-break:keep-all; }

/* -------------------------------------------------------------------- hero */
.hero{padding:92px 0 66px;border-bottom:1px solid var(--line)}
.hero h1{
  font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.04;letter-spacing:-.02em;
  max-width:14ch;margin:0 0 28px
}
.hero p{color:var(--muted);font-size:1.18rem;line-height:1.6;max-width:620px;margin:0 0 34px}
.hero p:last-child{margin-bottom:0}

/* ------------------------------------------------------------------ button */
.btn{
  display:inline-block;font-family:var(--sans);text-transform:uppercase;
  letter-spacing:.1em;font-size:.75rem;font-weight:600;padding:15px 26px;
  background:var(--dark);color:#f7f5f0;border:1px solid var(--dark);transition:.2s;cursor:pointer
}
.btn:hover{background:#000}
.btn.outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn.outline:hover{background:var(--ink);color:var(--bg)}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}

/* ----------------------------------------------------------------- section */
section{padding:78px 0;border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:42px;max-width:680px}
.sec-head .eyebrow{margin-bottom:14px}
.sec-head h2{font-size:clamp(1.9rem,3.4vw,2.5rem)}
.sec-head p{color:var(--muted);margin:16px 0 0;font-size:1.08rem}

/* ------------------------------------------------------------------- stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:44px}
.stat b{font-family:var(--serif);font-size:2.3rem;font-weight:600;line-height:1;display:block;margin-bottom:12px}
.stat span{color:var(--muted);font-size:.92rem;line-height:1.45}
.trusted small{display:block;text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;font-weight:600;color:var(--muted-2);margin-bottom:18px}
.trusted .logos{display:flex;flex-wrap:wrap;gap:40px;color:var(--muted-2);font-weight:600;letter-spacing:.03em;font-size:.95rem}

/* ------------------------------------------------------------- case grid */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px 40px}
.case{display:block}
.case .cover{aspect-ratio:16/10;overflow:hidden;background:var(--card);border-radius:2px;margin-bottom:18px}
.case .cover img{width:100%;height:100%;object-fit:cover}
.case .cover-ph{display:flex;align-items:center;justify-content:center;text-align:center;font-family:var(--serif);font-weight:600;font-size:1.7rem}
.case .meta{display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.case .meta h3{font-size:1.5rem}
.case .meta small{font-size:.78rem;color:var(--muted-2);white-space:nowrap}
.case .result{color:var(--muted);font-size:.95rem;margin:8px 0 0}
.case:hover .meta h3{color:var(--accent)}

/* ---------------------------------------------------------- work gallery */
.work-grid{columns:3;column-gap:34px}
.work{break-inside:avoid;margin:0 0 34px;cursor:pointer}
.work .frame{background:#f0eee7;border:1px solid var(--line);border-radius:2px;overflow:hidden}
.work .frame img{width:100%;display:block}
.work p{margin:12px 0 0;font-size:.92rem;color:var(--muted-2)}
.work p b{color:var(--ink);font-weight:600}

/* ---------------------------------------------------------------- pricing */
.price-note-top{color:var(--muted);margin:-20px 0 36px;font-size:1.02rem}
.price-row{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.price{background:var(--card);padding:34px 30px 38px;border-radius:2px}
.price h3{font-size:1.35rem;margin-bottom:14px}
.price .amt{font-family:var(--serif);font-size:2.4rem;font-weight:600;line-height:1;margin:0 0 12px}
.price .for{color:var(--muted);font-size:.86rem;margin:0 0 22px}
.price ul{list-style:none;padding:0;margin:0}
.price li{font-size:.92rem;padding:11px 0;border-top:1px solid var(--line)}
.price.featured{background:var(--dark);color:#e7e1d7}
.price.featured h3,.price.featured .amt{color:#fff}
.price.featured .for{color:#b3ada2}
.price.featured li{border-color:#333;color:#ded7cd}

/* ----------------------------------------------------------------- steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.step .num{font-family:var(--serif);font-size:1.7rem;color:var(--accent);display:block;margin-bottom:18px}
.step h3{font-family:var(--sans);font-size:1rem;font-weight:600;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------------------------------------------------------------- quote */
.quote-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px}
.q-info p{color:var(--muted);margin:0 0 30px}
.q-fact{margin-bottom:24px}
.q-fact b{display:block;text-transform:uppercase;letter-spacing:.16em;font-size:.7rem;font-weight:600;color:var(--muted-2);margin-bottom:7px}
.q-fact span,.q-fact a{font-size:1.02rem}
.q-fact a{border-bottom:1px solid transparent}
.q-fact a:hover{border-color:currentColor}
form label{display:block;text-transform:uppercase;letter-spacing:.16em;font-size:.7rem;font-weight:600;color:var(--muted-2);margin:0 0 12px}
form input,form select,form textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid var(--muted-2);
  padding:8px 0 10px;margin:0 0 26px;font-family:var(--sans);font-size:1.05rem;color:var(--ink)
}
form textarea{min-height:130px;resize:vertical}
form input:focus,form select:focus,form textarea:focus{outline:none;border-color:var(--ink)}

/* --------------------------------------------------------- case study body */
.cs{max-width:900px}
.cs-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:8px}
.cs-meta b{display:block;text-transform:uppercase;letter-spacing:.16em;font-size:.7rem;font-weight:600;color:var(--muted-2);margin-bottom:7px}
.cs-meta span{font-size:.98rem}
.cs article{max-width:760px;margin:0 auto}
.cs article h2{font-size:1.7rem;margin:46px 0 14px}
.cs article h3{font-family:var(--sans);font-size:1.05rem;font-weight:600;margin:26px 0 8px}
.cs article p{color:#33322e;margin:0 0 14px}
.cs article ul{list-style:none;padding:0;margin:14px 0 20px}
.cs article ul li{padding:10px 0;border-bottom:1px solid var(--line);color:#45443f;font-size:.97rem}
.cs article ul li strong{color:var(--ink)}

figure{margin:30px 0}
.frame{background:#f0eee7;border:1px solid var(--line);border-radius:2px;overflow:hidden}
.frame img{width:100%;display:block}
figcaption{color:var(--muted-2);font-size:.84rem;margin-top:10px;line-height:1.5}

.fig-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}
.fig-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.fig-grid.cols-4{grid-template-columns:repeat(4,1fr)}

/* placeholder blocks (stadia etc.) */
.ph{
  background:var(--card);border:1px solid var(--line);border-radius:2px;
  min-height:260px;display:flex;align-items:center;justify-content:center;text-align:center;
  color:var(--muted-2);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;padding:24px
}
.fig-grid .ph{min-height:200px}

/* before / after */
.ba{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:22px 0}
.ba>div{background:var(--card);border-radius:2px;padding:26px 26px 30px}
.ba h3{font-family:var(--sans);font-size:1.05rem;font-weight:600;margin:0 0 10px}
.ba ul{list-style:none;padding:0;margin:0}
.ba li{padding:9px 0;border-bottom:1px solid var(--line);color:#45443f;font-size:.94rem}
.ba li:last-child{border-bottom:0}

/* prev / next */
.cs-next{display:flex;justify-content:space-between;gap:20px}
.cs-next .lbl{display:block;text-transform:uppercase;letter-spacing:.16em;font-size:.7rem;font-weight:600;color:var(--muted-2);margin-bottom:8px}
.cs-next .pn{font-family:var(--serif);font-size:1.2rem}
.cs-next .pn:hover{color:var(--accent)}

/* ------------------------------------------------------------------ footer */
footer{padding:0}
.foot-inner{max-width:var(--wrap);margin:0 auto;padding:34px 40px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.foot-inner span{color:var(--muted-2);font-size:.9rem}
.foot-inner .links{display:flex;gap:26px}
.foot-inner .links a{color:var(--muted);font-size:.9rem}
.foot-inner .links a:hover{color:var(--ink)}

/* --------------------------------------------------------------- lightbox */
.lb{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  background:rgba(20,19,17,.92);padding:40px}
.lb.open{display:flex}
.lb figure{margin:0;max-width:1000px;text-align:center}
.lb img{max-width:100%;max-height:80vh;margin:0 auto;border-radius:2px}
.lb figcaption{color:#e7e1d7;margin-top:16px;font-size:1rem}
.lb figcaption small{display:block;color:#b3ada2;font-size:.85rem;margin-top:4px}
.lb-close,.lb-prev,.lb-next{position:absolute;background:none;border:0;color:#fff;cursor:pointer;font-size:2rem;line-height:1;opacity:.8}
.lb-close{top:26px;right:32px;font-size:1.6rem}
.lb-prev{left:28px;top:50%;transform:translateY(-50%)}
.lb-next{right:28px;top:50%;transform:translateY(-50%)}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{opacity:1}

/* ==========================================================================
   Home hero — full-bleed editorial image (right), copy (left)
   ========================================================================== */
.hero-home{ padding:0; border-bottom:1px solid var(--line); overflow:hidden; }
.hero-split{
  display:grid; grid-template-columns:1fr 1fr; align-items:center;
  min-height:clamp(560px, 76vh, 840px);
}
.hero-copy{
  padding:48px 56px 48px max(40px, calc((100vw - 1440px) / 2 + 40px));
}
.hero-copy .eyebrow{ margin-bottom:22px; }
.hero-copy h1{ font-size:clamp(2.6rem, 4.6vw, 4.6rem); margin-bottom:26px; }
.hero-copy > p{ margin-bottom:34px; }
.hero-dot{ color:var(--accent); }

.hero-art{ position:relative; align-self:stretch; min-height:340px; overflow:hidden; background:var(--bg);
  -webkit-mask-image:linear-gradient(to right, transparent 0%, #000 34%);
          mask-image:linear-gradient(to right, transparent 0%, #000 34%); }
.hero-photo{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:64% center; display:block;
  animation:heroKen 22s ease-in-out infinite alternate;
}
@keyframes heroKen{ from{ transform:scale(1); } to{ transform:scale(1.06); } }

@media (max-width:1024px){
  .hero-split{ grid-template-columns:1fr; min-height:0; }
  .hero-copy{ padding:44px 40px 40px; }
  .hero-art{ order:-1; min-height:clamp(300px, 56vw, 480px);
    -webkit-mask-image:none; mask-image:none; }
}
@media (max-width:478px){
  .hero-copy{ padding:48px 20px 32px; }
  .hero-art{ min-height:280px; }
}
@media (prefers-reduced-motion:reduce){
  .hero-photo{ animation:none; }
}

/* ==========================================================================
   Responsive — container max-width 1440px, centered.
   Breakpoints: desktop 1920 · tablet 1024 · mobile 478
   ========================================================================== */

/* Desktop (≥1920): the 1440 container centered leaves exactly 240px side margins */
@media (min-width:1920px){
  .wrap,.nav-inner,.foot-inner{ padding-left:0; padding-right:0; }
}

/* Tablet (≤1024) */
@media (max-width:1024px){
  .wrap,.nav-inner,.foot-inner{ padding-left:40px; padding-right:40px; }

  /* hamburger menu */
  .nav-toggle{ display:flex; flex-direction:column; gap:6px; cursor:pointer; padding:6px; margin:-6px; z-index:60; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; gap:0; align-items:stretch;
    background:var(--bg); border-bottom:1px solid var(--line);
    max-height:0; overflow:hidden; transition:max-height .3s ease;
    box-shadow:0 12px 24px rgba(0,0,0,.06);
  }
  .nav-toggle-cb:checked ~ .nav-links{ max-height:360px; }
  .nav-links a{ padding:15px 40px; font-size:.8rem; letter-spacing:.12em; color:var(--ink); border-top:1px solid var(--line); }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(1){ transform:translateY(8px) rotate(45deg); }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(2){ opacity:0; }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(3){ transform:translateY(-8px) rotate(-45deg); }

  .stats{ grid-template-columns:1fr 1fr; gap:28px; }
  .steps{ grid-template-columns:1fr 1fr; gap:26px; }
  .case-grid{ grid-template-columns:1fr; gap:36px; }
  .price-row{ grid-template-columns:1fr; }
  .quote-grid{ grid-template-columns:1fr; gap:40px; }
  .cs-meta{ grid-template-columns:1fr; gap:16px; }
  .work-grid{ columns:2; }
  .fig-grid,.fig-grid.cols-3,.fig-grid.cols-4{ grid-template-columns:1fr 1fr; }
  .ba{ grid-template-columns:1fr; }
  .foot-inner{ flex-direction:column; align-items:flex-start; }
}

/* Mobile (≤478) */
@media (max-width:478px){
  .wrap,.nav-inner,.foot-inner{ padding-left:20px; padding-right:20px; }
  .nav-links a{ padding-left:20px; padding-right:20px; }
  section{ padding:56px 0; }
  .hero{ padding:56px 0 44px; }
  .hero h1{ font-size:2.1rem; }
  .hero p{ font-size:1.05rem; }
  .stats,.steps{ grid-template-columns:1fr; }
  .work-grid{ columns:1; }
  .fig-grid,.fig-grid.cols-3,.fig-grid.cols-4{ grid-template-columns:1fr; }
  .cs-next{ flex-direction:column; gap:20px; }
  .cs-next>div:last-child{ text-align:left!important; }
}